Blended Learning Technology "Flipped Class" in the System of Higher Vocational EducationSvetlana Belovitskay, Tatiana Guseva, Daria Demicheva, Irina Shatokhina and Elena ShcherbinaE3S Web Conf., 273 (2021) 12003DOI: https://doi.org/10.1051/e3sconf/202127312003